Downtown-based Turner Publishing has bought from global media company John Wiley & Sons a number of niche divisions.

Turner’s acquisition closed Tuesday and covers print and digital assets associated with about 1,500 titles from Wiley’s pets, crafts and general interest consumer programs. Included in the deal are Howell Book House and Baseball Prospectus.

Terms of the transaction are not being disclosed.

“This strategic acquisition broadens Turner’s list, which spans a wide variety of fiction and nonfiction consumer publishing categories and represents an exciting growth opportunity,” said Todd Bottorff, president and publisher of Turner Publishing. “The combination of Wiley’s titles with our existing programs will significantly strengthen Turner’s market position as a consumer publisher.”

Turner was founded in 1984 and has produced more than 1,000 titles in categories such as home and garden, health and wellness, history and others. The company in 2009 bought more than 400 titles from Cumberland House Press and a year later acquired some assets from a Minnesota nonprofit.

“Turner Publishing is well-positioned to provide the strategic focus required for these assets to achieve their full potential and continue to flourish,” said Mark Allin, Wiley’s senior vice president of professional development. “While these assets have contributed to Wiley’s success to date, Wiley is reshaping its portfolio to support growth opportunities in global research, education and professional practice.”

Wiley has in the past year sold off, among other things, the Frommer’s travel business to Google and CliffsNotes and Webster’s New World Dictionary to Houghton Mifflin Harcourt.